SEWilco writes "Xbox Live is not working, as mentioned 36 hours ago in an Xbox team blog. Even if you can get logged in, multiplayer matchmaking doesn't find enough players for games. For a while Zune Marketplace was also affected. At present Zune status claims 'Up and running' while Xbox Live status continues to say 'Users may experience intermittent issues logging onto Xbox Live. Our engineers are continuing to investigate and are working to resolve this issue. We apologize for any inconvenience.' This has been been going on for days." My assumption is that this is the result of lots of new XBLA users logging in with Christmas 360s.